If two switches are connected through a transport network device, how does a switch detect that the remote interface goes Down

Publication Date: 2016-11-24Views: 262Downloads: 0

Issue Description

If two switches are connected through a transport network device, how does a switch detect that the remote interface goes Down

Solution

In V100R005C01SPC100 and later versions, you can configure EFM packet receiving timeout detection on both ends of a link. When receiving an EFM packet times out on one end, a port error-down event is triggered. Then the local end knows that the remote port goes Down.